DSPIC33FJ256MC710A-I/PF - 40 MIPS 16-bit DSC, 256KB Flash, 100-TQFP
MPN: DSPIC33FJ256MC710A-I/PF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.02 | $14.02 |
| 10 | $12.62 | $126.20 |
| 100 | $11.21 | $1,121.00 |
| 500 | $9.95 | $4,975.00 |
| 1,000 | $9.1 | $9,100.00 |
DSPIC33FJ256MC710A-I/PF Overview
What is a Digital Signal Controller? A DSC is a hybrid microcontroller that combines a traditional MCU control core with a high-throughput DSP engine. The dsPIC33F core executes instructions at up to 40 MIPS while the DSP engine provides single-cycle MAC, dual-operand fetch, and barrel shifter support, enabling closed-loop control algorithms at sub-microsecond loop rates. Within the broader semiconductor taxonomy, a DSC sits between an MCU and a DSP, optimized for real-time control of motors, power converters, and audio front-ends.
Key features of the DSPIC33FJ256MC710A-I/PF include up to 85 I/O pins, two CAN 2.0B controllers, three SPI, three I2C, and two UART modules, plus advanced motor-control PWM with up to 8 PWM outputs and a 10-bit 1.1 Msps ADC with up to 32 input channels. The on-chip DMA engine and zero-overhead interrupt controller are intended for deterministic, real-time response in closed-loop servo and PFC applications.
Typical applications targeted by this family include brushless DC (BLDC) and permanent-magnet synchronous motor (PMSM) drives, single and three-phase induction motor inverters, switched reluctance motor control, uninterruptible power supplies (UPS), power factor correction (PFC) stages, digital audio processing, and industrial automation. The on-chip CAN 2.0B peripheral supports multi-node motor networks and fieldbus protocols common in factory automation.
When designing with this DSC, route the analog and digital grounds as separate islands joined at a single point, place the Vcap/Vddcore decoupling capacitor as close to the dedicated pin as possible, and use the on-chip DMA to offload ADC and PWM event handling from the CPU. Code development is supported by MPLAB X, the MPLAB dsPIC33F compiler, and the dsPIC Motor Control Library.
This page synthesizes distributor pricing, drop-in same-family alternatives, and design considerations compiled across the Microchip product page and major distributor listings - content that is not aggregated on the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33FJ256MC710A-I/PF — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DSPIC33FJ256MC710A-I/PF (same form factor and footprint) — differing in Package, Operating Temperature, ADC, Core, Data RAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ256MC710A-I/PT
✅ Drop-In✓ In Stock
$7.8 / Unit
View Datasheet →DSPIC33FJ256MC710-I/PF
✅ Drop-In✓ In Stock
$18.8 / Unit
View Datasheet →DSPIC33FJ128MC710A-I/PF
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$6.45 / Unit
View Datasheet →DSPIC33FJ64MC710A-I/PF
✅ Drop-In✓ In Stock
$5.92 / Unit
View Datasheet →DSPIC33EP256MC506-I/PT
✅ Drop-In✓ In Stock
$5.95 / Unit
View Datasheet →DSPIC33FJ256MC710A-I/PF Maximum Ratings & Electrical Characteristics
| Core | dsPIC33F 16-bit DSC |
| Maximum CPU Speed | 40 MIPS (50 MHz / 2 instruction cycles) |
| Program Memory | 256 KB Flash |
| Data RAM | 30 KB SRAM |
| I/O Count | 85 |
| ADC | 10-bit, 1.1 Msps, up to 32 input channels |
| PWM Outputs | 8 (motor control PWM with complementary outputs and dead-time) |
| CAN | 2x CAN 2.0B |
| UART | 2x UART |
| SPI | 3x SPI |
| I2C | 3x I2C |
| DMA | 8-channel DMA |
| Operating Voltage | 3.0 V to 3.6 V (typical 3.3 V) |
| Operating Temperature | -40 C to +85 C (Industrial -I) |
| Package | 100-pin TQFP, 14x14 mm |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
DSPIC33FJ256MC710A-I/PF Pin Configuration
| Pin 1 | RP0/CN0/RB0 — Remappable I/O / change notification |
| Pin 10 | RP9/CN11/RB9 — Remappable I/O |
| Pin 20 | RP19/CN21/RB19 — Remappable I/O |
| Pin 30 | AN8/RP28/CN4/RB12 — Analog input / remappable I/O |
| Pin 40 | AVSS — Analog ground |
| Pin 50 | AN15/RC13 — Analog input |
| Pin 60 | OSC2/CLKO/RC15 — Oscillator output / system clock out |
| Pin 70 | PGEC1 — ICSP programming clock |
| Pin 80 | PWM1H/RD0 — PWM output 1 high |
| Pin 90 | PWM4H/RD9 — PWM output 4 high |
| Pin 100 | VDD — Digital supply voltage (3.3V) |
Typical Applications
DSPIC33FJ256MC710A-I/PF is suitable for 7 applications: Brushless DC (BLDC) and PMSM Motor Control, Industrial AC Induction Motor Drive, Uninterruptible Power Supply (UPS) and PFC, Solar Inverter and Renewable Power, Digital Audio Processing, Automotive Body and Powertrain ECU, Industrial Sensor Hub and IoT Gateway.
Brushless DC (BLDC) and PMSM Motor Control
The DSPIC33FJ256MC710A-I/PF is purpose-fit for 3-phase BLDC and PMSM motor control because of its 8-channel PWM with complementary outputs, programmable dead-time, fault inputs, and 32-channel 10-bit ADC at 1.1 Msps - all the building blocks of a current-mode FOC loop. Running field-oriented control at 40 MIPS, the part sustains 16 kHz PWM with 25% CPU headroom for the MAC engine that computes inverse Park and SVM blocks. The on-chip dual CAN 2.0B connects the drive to a CANopen or DeviceNet network without an external transceiver MCU. Place shunt resistors in the low-side return path and let the dedicated PWM-trigger ADC samples synchronize to the modulation edge.
Recommended
Industrial AC Induction Motor Drive
Industrial AC induction and switched-reluctance motor drives use the DSPIC33FJ256MC710A-I/PF for V/Hz and indirect FOC control loops where the 256 KB Flash accommodates full IEC 61800 profile libraries plus runtime logging in the 30 KB SRAM. The 100-TQFP exposes enough I/O (85 pins) to host the encoder, isolated gate-driver signals, and an RS-485 / UART diagnostic port simultaneously. Use the DMA engine to stream ADC samples from current and shunts and into RAM without CPU intervention, freeing the core for the slip-frequency estimator and PI loops at 4-8 kHz update rates.
Recommended
Uninterruptible Power Supply (UPS) and PFC
The DSPIC33FJ256MC710A-I/PF is well-suited to online UPS control and PFC boost stages because its DSP engine runs average-current-mode control loops at 50 kHz while the MCU side handles battery management, display, and CAN telemetry. Two CAN ports let the UPS module report state to the paralleled-redundancy bus and accept grid-tie setpoints from an upstream controller. The 256 KB Flash is large enough to host full DSP-based sine-PWM code plus the AC-line cycle quantizer, all in one part. Use the on-chip comparator with the PWM fault input for hardware-cycle-by-cycle current limit.
Recommended
Solar Inverter and Renewable Power
The DSPIC33FJ256MC710A-I/PF runs MPPT, islanding detection, and grid-synchronization algorithms in single-phase and three-phase solar inverters at the 256 KB Flash density required by full anti-islanding firmware plus Modbus/CAN reporting. The 8-channel PWM stage drives a full-bridge topology with active clamping, while the 10-bit ADC at 1.1 Msps is sufficient for 50 Hz grid voltage and current sensing. The 100-TQFP exposes ample I/O for a paralleled H-bridge drive plus the inverter's local UI buttons and LCD bus.
Recommended
Digital Audio Processing
Audio effects processors and high-fidelity DAC front-ends leverage the DSP engine of the DSPIC33FJ256MC710A-I/PF to run biquad filters, dynamics processing, and FFT analysis at 40 MIPS in real time. The 30 KB SRAM fits multi-channel audio buffers plus coefficient tables for parametric EQ. The SPI and I2C peripherals connect to external audio DACs and digital volume controls, while the dual CAN ports can carry CobraNet or networked audio metadata in professional installations.
Recommended
Automotive Body and Powertrain ECU
Although the -I variant is industrial temperature, the DSPIC33FJ256MC710A architecture also powers automotive body and powertrain ECUs where the dual CAN 2.0B controllers act as gateway between chassis and body networks. The 40 MIPS core handles HVAC actuator control, seat-position memory, or transmission shift logic at sub-10 ms loop rates. The 8 PWM outputs and 32 ADC channels support simultaneous fan, pump, and BLDC actuator control from a single MCU - use the I2C and SPI for sensor I/O expansion without additional MCUs.
Recommended
Industrial Sensor Hub and IoT Gateway
The DSPIC33FJ256MC710A-I/PF acts as an industrial sensor hub, aggregating analog sensors via its 32-channel ADC and pushing data over the dual CAN or UART network. At 40 MIPS the part runs Kalman filters or vibration FFTs locally, reducing uplink bandwidth. The 100-TQFP package and 85 I/O provide headroom for expansion headers, status LEDs, and an external keypad. Use the on-chip DMA to offload ADC sampling and only interrupt the CPU on threshold-crossing events.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ256MC710A-I/PF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ256MC710A-I/PT | DSPIC33FJ256MC710-I/PF | DSPIC33FJ128MC710A-I/PF | DSPIC33FJ64MC710A-I/PF |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (14x14 mm) | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same |
| CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Program Flash | 256 KB | 256 KB | 256 KB | 128 KB (-50%) | 64 KB (-75%) |
| Data RAM | 30 KB | 30 KB | 30 KB | 16 KB (-47%) | 8 KB (-73%) |
| CAN | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B | 1x CAN 2.0B |
| PWM Outputs | 8 outputs | 8 outputs | 8 outputs | 8 outputs | 6 outputs |
| Operating Temperature | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) |
| Silicon Revision | A | A | non-A (pre-A revision) | A | A |
Key Differentiators
- Largest Flash in the dsPIC33FJ256MC710A family (vs DSPIC33FJ128MC710A-I/PF)
- Dual CAN 2.0B with FOC (vs DSPIC33FJ64MC710A-I/PF)
- Mature dsPIC33F tool chain (vs DSPIC33EP256MC506)
Design Notes
Estimated: route the AGND and DGND traces as separate islands joined at a single point near the AVSS pin to keep digital switching noise out of the ADC reference path. Place the 10 uF + 0.1 uF Vcap/Vddcore pair pin immediately adjacent to pin 1 and pin 100 to meet the dsPIC33F internal regulator loop stability spec. Keep all analog traces short and away from the PWM and ICSP switching edges.
Estimated: at 40 MIPS continuous, the DSPIC33FJ256MC710A-I/PF draws ~50 mA from VDD (3.3 V), dissipating approximately 0.165 W in the silicon. The 100-TQFP has theta_JA around 45-50 C/W on a 4-layer JEDEC test board, giving a junction-temperature rise of ~8 C above ambient at full load. No external heatsink is required for typical motor-control applications - just a 2 oz copper thermal pad below the exposed pad area on the PCB.
Configure the PWM fault input (FLT1/FLT2) and the overcurrent comparator to force a hardware shutdown within one PWM period on overcurrent events, regardless of CPU state. Use the DMA engine to stream ADC conversion results into a double-buffered RAM region at 1.1 Msps without CPU overhead - this preserves CPU bandwidth for the FOC math. Add 22-100 ohm series resistors on PWM traces longer than 50 mm to dampen ringing into the gate driver inputs.
Do not exceed the absolute maximum VDD of 3.6V - the dsPIC33FJ256MC710A is NOT a 5V-tolerant part. Always use the on-chip voltage regulator by tying Vcap to a 10 uF low-ESR cap; never supply Vddcore directly. Forgetting the Vcap capacitor is the most common cause of dsPIC33F failures. Ensure the MCLR pin is pulled high through a 10 kohm resistor or controlled by the supervisor, otherwise spurious resets will occur.
Compliance Information
RoHS compliant per Microchip product page. -I grade is industrial temperature -40 C to +85 C, not AEC-Q100 automotive qualified; for automotive, use the dsPIC33CK or dsPIC33CH families.
